Titlebook: Constraint Handling Rules; Current Research Top Tom Schrijvers,Thom Frühwirth Book 2008 Springer-Verlag Berlin Heidelberg 2008 Ada.Constrai

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Implementing Probabilistic Abductive Logic Programming with Constraint Handling Rules,iding minimal explanations with their probabilities. Both all-explanations and most-probable-explanations versions are given..Compared with other probabilistic versions of abductive logic programming, the approach is characterized by higher generality and a flexible and adaptable architecture which

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A Compositional Semantics for CHR with Propagation Rules, is nowadays a general purpose language..In [7,11] a trace based, compositional semantics for CHR has been defined. Such a compositional model uses as reference operational semantics the original “naive” one [9] which, due to the propagation rule, admits trivial non-termination. In this paper we ext

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Guard Reasoning in the Refined Operational Semantics of CHR,s of CHR is very nondeterministic. Recently, instantiations of the high-level operational semantics have been proposed and implemented, removing sources of nondeterminism and hence allowing better execution control. Rule guards may be redundant under a more instantiated semantics while being necessa

COST

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Epithelium

Lecture Notes in Computer Scienceansform multisets of relations called constraints until no more change occurs. As an introduction to CHR as a general-purpose programming language we present some small programs using different programming styles and discuss their properties.

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Samuel Silva,Daniela Braga,António Teixeiraaction Problems (CSP), but these search algorithms have to be implemented in the host language of adaptive CHR which is currently Java. On the other hand, CHR. enables to explicitly formulate search in CHR, using disjunctive bodies to model choices. However, a naive implementation for handling disju

APO

Constantine Stephanidis,Margherita Antonaa generic algorithm that symbolically constructs rule-based solvers from the intensional definition of the constraint. Unlike the well-established “generate and test” approach, our symbolic construction approach is capable of generating recursive rules from a recursive constraint definition. Combini